INTERFACING NDIR CO2 MODULE WITH ARDUINO

Riva:

vmandin:
Yes sir, the sensor has a digital output. What exactly is the difference in measurements if I use the digital or analog? And how is it done?

The device seems to have analogue, serial and SPI interfaces. The data sheet says...

SPI/Microwire or UART @9600 baud
(Please call for detailed protocol specification)

Yes, its on the data sheet. I just don't know how to use it yet. I would like to know how accurate is the digital output than the analog.